Jianzhong Zhu

Bib: 2552•M•Age: 47

Newark, CA

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 7166

Top 23%

Gender (Male)

#0 / 5052

Top 27%

Masters (Masters Men)

#0 / 1321

Top 22%

Division (M45-49)

#0 / 319

Top 21%

Race Day Weather

59°/49°F

scattered clouds

⏱️ Race Timeline

Start

0:00:00

Race begins

Start

0:00:00

Race begins

17:02

Rank: #1442

Start → 2M

17:02 | 8:31/mi

17:02

Rank: #1442

Start → 2M

17:02 | 8:31/mi

33:20

Rank: #1128 (+314)

2M → 4M

16:18 | 8:09/mi

33:20

Rank: #1128 (+314)

2M → 4M

16:18 | 8:09/mi

49:48

Rank: #1081 (+47)

4M → 6M

16:28 | 8:14/mi

49:48

Rank: #1081 (+47)

4M → 6M

16:28 | 8:14/mi

1:06:22

Rank: #1090 (-9)

6M → 8M

16:34 | 8:17/mi

1:06:22

Rank: #1090 (-9)

6M → 8M

16:34 | 8:17/mi

9.6M

1:20:01

Rank: #1061 (+29)

8M → 9.6M

13:39 | 8:32/mi

9.6M

1:20:01

Rank: #1061 (+29)

8M → 9.6M

13:39 | 8:32/mi

10M

1:22:18

Rank: #1056 (+5)

9.6M → 10M

2:17 | 5:43/mi

10M

1:22:18

Rank: #1056 (+5)

9.6M → 10M

2:17 | 5:43/mi

10.5M

1:27:32

Rank: #1019 (+37)

10M → 10.5M

5:14 | 10:28/mi

10.5M

1:27:32

Rank: #1019 (+37)

10M → 10.5M

5:14 | 10:28/mi

12M

1:39:24

Rank: #1020 (-1)

10.5M → 12M

11:52 | 7:55/mi

12M

1:39:24

Rank: #1020 (-1)

10.5M → 12M

11:52 | 7:55/mi

14M

1:57:34

Rank: #1035 (-15)

12M → 14M

18:10 | 9:05/mi

14M

1:57:34

Rank: #1035 (-15)

12M → 14M

18:10 | 9:05/mi

16M

2:16:36

Rank: #1352 (-317)

14M → 16M

19:02 | 9:31/mi

16M

2:16:36

Rank: #1352 (-317)

14M → 16M

19:02 | 9:31/mi

18M

2:35:38

Rank: #1362 (-10)

16M → 18M

19:02 | 9:31/mi

18M

2:35:38

Rank: #1362 (-10)

16M → 18M

19:02 | 9:31/mi

20M

2:53:35

Rank: #1334 (+28)

18M → 20M

17:57 | 8:58/mi

20M

2:53:35

Rank: #1334 (+28)

18M → 20M

17:57 | 8:58/mi

22M

3:11:12

Rank: #1355 (-21)

20M → 22M

17:37 | 8:48/mi

22M

3:11:12

Rank: #1355 (-21)

20M → 22M

17:37 | 8:48/mi

24M

3:35:09

Rank: #1614 (-259)

22M → 24M

23:57 | 11:59/mi

24M

3:35:09

Rank: #1614 (-259)

22M → 24M

23:57 | 11:59/mi

Finish· 26.22 mi

3:56:43

Rank: #1613 (+1)

24M → Finish

21:34 | 9:43/mi

Finish· 26.22 mi

3:56:43

Rank: #1613 (+1)

24M → Finish

21:34 | 9:43/mi

The Course

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Half Splits

1st Half· via 14MFaster

Distance14.00 mi

Time1:57:34

Pace8:24 /mi

2nd Half

Distance12.22 mi

Time1:59:09

Pace9:45 /mi

📊Positive Split: 1.3% slower second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
2M	2.00 mi	05:33:02	17:02	8:31	17:02	8:31	-
4M	4.00 mi	05:49:20	33:20	8:20	16:18	8:09	-0:22
6M	6.00 mi	06:05:48	49:48	8:18	16:28	8:14	+0:05
8M	8.00 mi	06:22:22	1:06:22	8:18	16:34	8:17	+0:03
9.6M	9.60 mi	06:36:01	1:20:01	8:20	13:39	8:32	+0:15
10M	10.00 mi	06:38:18	1:22:18	8:14	2:17	5:43	-2:49
10.5M	10.50 mi	06:43:32	1:27:32	8:20	5:14	10:28	+4:45
12M	12.00 mi	06:55:24	1:39:24	8:17	11:52	7:55	-2:33
14M	14.00 mi	07:13:34	1:57:34	8:24	18:10	9:05	+1:10
16M	16.00 mi	07:32:36	2:16:36	8:32	19:02	9:31	+0:26
18M	18.00 mi	07:51:38	2:35:38	8:39	19:02	9:31	0:00
20M	20.00 mi	08:09:35	2:53:35	8:41	17:57	8:58	-0:33
22M	22.00 mi	08:27:12	3:11:12	8:41	17:37	8:48	-0:10
24M	24.00 mi	08:51:09	3:35:09	8:58	23:57	11:59	+3:11
Finish	26.22 mi	09:12:43	3:56:43	9:02	21:34	9:43	-2:16

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

5:43 /mi

Average Pace

9:02 /mi

Slowest Pace

11:59 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:09

6% of race

Time at Steady Pace

2:13:45

57% of race

Time at Slower Pace

1:28:49

38% of race

Average Pace: 9:02 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

0mi6.6mi13.1mi19.7mi26.2mi

Pace:

Faster

Steady

Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment	Pace	Rank
2M	2.00 mi	05:33:02	17:02	8:31	17:02	8:31	#1442
4M	4.00 mi	05:49:20	33:20	8:20	16:18	8:09	#1128
6M	6.00 mi	06:05:48	49:48	8:18	16:28	8:14	#1081
8M	8.00 mi	06:22:22	1:06:22	8:18	16:34	8:17	#1090
9.6M	9.60 mi	06:36:01	1:20:01	8:20	13:39	8:32	#1061
10M	10.00 mi	06:38:18	1:22:18	8:14	2:17	5:43	#1056
10.5M	10.50 mi	06:43:32	1:27:32	8:20	5:14	10:28	#1019
12M	12.00 mi	06:55:24	1:39:24	8:17	11:52	7:55	#1020
14M	14.00 mi	07:13:34	1:57:34	8:24	18:10	9:05	#1035
16M	16.00 mi	07:32:36	2:16:36	8:32	19:02	9:31	#1352
18M	18.00 mi	07:51:38	2:35:38	8:39	19:02	9:31	#1362
20M	20.00 mi	08:09:35	2:53:35	8:41	17:57	8:58	#1334
22M	22.00 mi	08:27:12	3:11:12	8:41	17:37	8:48	#1355
24M	24.00 mi	08:51:09	3:35:09	8:58	23:57	11:59	#1614
Finish	26.22 mi	09:12:43	3:56:43	9:02	21:34	9:43	#1613

Faster pace

Steady pace

Slower pace

Est.Checkpoint not recorded (estimated)

~Segment time uses estimated prior

Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 11%

Garmin Challenge

Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

7:31

Segment Time

8:21/mi

Pace

0.90 mi

Distance

Overall

797

Men

720

Division

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Males	M45-49	Seg. Overall	Seg. Males	Seg. M45-49
2M	2.00 mi	2.00 mi	1442	1258	69	1149(Top 16%)	1008(Top 20%)	38(Top 12%)
4M	4.00 mi	2.00 mi	1128+314	990+268	44+25	895(Top 12%)	797(Top 16%)	38(Top 12%)
6M	6.00 mi	2.00 mi	1081+47	952+38	45-1	979(Top 14%)	872(Top 17%)	41(Top 13%)
8M	8.00 mi	2.00 mi	1090-9	968-16	48-3	1223(Top 17%)	1063(Top 21%)	53(Top 17%)
9.6M	9.60 mi	1.60 mi	1061+29	942+26	48	994(Top 14%)	888(Top 18%)	32(Top 10%)
10M	10.00 mi	0.40 mi	1056+5	940+2	47+1	1108(Top 15%)	976(Top 19%)	51(Top 16%)
10.5M	10.50 mi	0.50 mi	1019+37	906+34	41+6	777(Top 11%)	695(Top 14%)	26(Top 8%)
12M	12.00 mi	1.50 mi	1020-1	906	42-1	1149(Top 16%)	1008(Top 20%)	38(Top 12%)
14M	14.00 mi	2.00 mi	1035-15	917-11	39+3	1302(Top 18%)	1134(Top 22%)	52(Top 16%)
16M	16.00 mi	2.00 mi	1352-317	1178-261	62-23	4115(Top 57%)	3129(Top 62%)	199(Top 62%)
18M	18.00 mi	2.00 mi	1362-10	1177+1	57+5	1722(Top 24%)	1428(Top 28%)	86(Top 27%)
20M	20.00 mi	2.00 mi	1334+28	1150+27	56+1	1378(Top 19%)	1155(Top 23%)	57(Top 18%)
22M	22.00 mi	2.00 mi	1355-21	1163-13	60-4	1768(Top 25%)	1430(Top 28%)	83(Top 26%)
24M	24.00 mi	2.00 mi	1614-259	1356-193	69-9	3849(Top 54%)	2790(Top 55%)	184(Top 58%)
Finish	26.22 mi	2.22 mi	1613+1	1344+12	67+2	1945(Top 27%)	1518(Top 30%)	95(Top 30%)

M45-49

199

16M→18M

16.0 - 18.0 mi

Top 24%

×8stories

+106ft-45ft

Overall

1722

Males

1428

M45-49

18M→20M

18.0 - 20.0 mi

Top 19%

×3stories

+52ft-26ft

Overall

1378

Males

1155

M45-49

20M→22M

20.0 - 22.0 mi

Top 25%

×21stories

+17ft-266ft

Overall

1768

Males

1430

M45-49

22M→24M

22.0 - 24.0 mi

Top 54%

×3stories

+70ft-85ft

Overall

3849

Males

2790

M45-49

184

24M→Finish

24.0 - 26.2 mi

Top 27%

~flat

+2ft-2ft

Overall

1945

Males

1518

M45-49

Passing Analysis

Category:

Athletes Passed

728*

Passed By

899

Net Change

-171

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 2M	-	-	-	-	#1442
2M → 4M	315	1	+314	#1442	#1128
4M → 6M	60	13	+47	#1128	#1081
6M → 8M	24*	33	-9	#1081	#1090
8M → 9.6M	37	8	+29	#1090	#1061
9.6M → 10M	7	2	+5	#1061	#1056
10M → 10.5M	39	2	+37	#1056	#1019
10.5M → 12M	20	21	-1	#1019	#1020
12M → 14M	17*	32	-15	#1020	#1035
14M → 16M	4*	321	-317	#1035	#1352
16M → 18M	71	81	-10	#1352	#1362
18M → 20M	44*	16	+28	#1362	#1334
20M → 22M	33*	54	-21	#1334	#1355
22M → 24M	11*	270	-259	#1355	#1614
24M → Finish	46*	45	+1	#1614	#1613
TOTALS	728*	899	-171

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:

📈Position Graph

🎨Heatmap Timeline

🔄Passing Circle

🌊Position Flow

🏃Race Lanes

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Results processed 8 days ago

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

The San Francisco Marathon

Race timed by

Race Place Events

Jianzhong Zhu

⏱️ Race Timeline

The Course

Claim it — unlock a deeper AI report on this race, free

Half Splits

Checkpoint Splits

Checkpoints & Pacing

📈Pace Line

Pace Progression

📊Segments

Segment Time Comparison

🎨Heatmap

Pace Heatmap

✨Sparklines

Checkpoint Splits with Pace Trends

Garmin Challenge

Checkpoint and Segment Rankings

Segment Performance Analysis

10.5M→12M

2M→4M

4M→6M

6M→8M

8M→9.6M

9.6M→10M

10M→10.5M

10.5M→12M

12M→14M

14M→16M

16M→18M

18M→20M

20M→22M

22M→24M

24M→Finish

Passing Analysis

Passing Visuals

📈Position Graph

🎨Heatmap Timeline

🔄Passing Circle

🌊Position Flow

🏃Race Lanes

⚖️ Age Grade

Export Track Data

Questions or issues regarding timing data?

Quick Links

All Results

Race Analytics

Course Information

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Public Race Data